Who Funds Deep Tech Startups in San Diego?

Real, verified funding sources for deep tech founders in San Diego: VC funds, accelerators, angel networks, and active grant programs — sourced from SEC filings and Grants.gov, not estimates.

Deep Tech Funding Snapshot — San Diego (as of August 2026)

  • 1
    1 VC fundsheadquartered in San Diego with "Deep Tech" in their name
  • 2
    8 acceleratorsopen to deep tech founders in San Diego (including globally-available programs)
  • 3
    6 angel networksbased in San Diego
  • 4
    60 open grantsin the Technology category, refreshed nightly from Grants.gov

Deep Tech VC Funds in San Diego

Boost VC Deep Tech Fund 4, L.P.

📍 San Mateo, CA📅 Filed July 2024

General partners: Brayton Williams, Adam Draper

$84.4M
Effective fund size

Deep Tech Accelerators Open to San Diego

8 programs

Y Combinator

San Francisco, CA

Y Combinator

$500K
Deadline: Rolling / no fixed deadline
Learn More →

Pear VC Accelerator

Palo Alto, CA

Pear VC Accelerator

$500K
Deadline: Rolling / no fixed deadline
Learn More →

Lemnos

San Francisco, CA

Lemnos

$500K
Deadline: Rolling / no fixed deadline
Learn More →

Contrary Capital

San Francisco, CA

Contrary Capital

$500K
Deadline: Rolling / no fixed deadline
Learn More →

500 Global

San Francisco, CA

500 Global

$250K
Deadline: Rolling / no fixed deadline
Learn More →

Mucker Capital

Santa Monica, CA

Mucker Capital

$250K
Deadline: Rolling / no fixed deadline
Learn More →

AngelPad

San Francisco, CA

AngelPad

$120K
Deadline: Rolling / no fixed deadline
Learn More →

Techstars Los Angeles

Los Angeles, CA

Techstars Los Angeles

$120K
Deadline: Rolling / no fixed deadline
Learn More →

Angel Investor Networks in San Diego

6 networks

Band of Angels

👥 150 members💰 $25K - $500K check range

📍 Menlo Park, CA

TechnologySoftwareHardwareDeep Tech

Keiretsu Forum

👥 3000 members💰 $25K - $2M check range

📍 San Ramon, CA

TechnologyHealthcareConsumerFintechSaaS

Keiretsu Forum

👥 1000 members💰 $25K - $2M check range

📍 Palo Alto, CA

TechnologyHealthcareCleanTechConsumer

Tech Coast Angels

👥 400 members💰 $5K - $150K check range

📍 San Diego, CA

TechnologyLife SciencesCleanTech

Investors Circle

👥 250 members💰 $25K - $500K check range

📍 San Francisco, CA

ImpactSocial EnterpriseSustainabilityCleanTech

Stanford Angels and Entrepreneurs

👥 200 members💰 $25K - $500K check range

📍 Stanford, CA

TechnologyHealthcareConsumerFintechSaaS

Grants in the Technology Category

Deep Tech falls under the broader "Technology" category in federal grant data. These are federal programs open to eligible founders nationwide (including San Diego) — live from Grants.gov, refreshed nightly.

Decentralized Artificial Intelligence through Controlled Emergence (DICE)

DARPA - Information Processing Technologies Office

Deadline: August 25, 2026Apply →
Deadline: August 28, 2026Apply →
Deadline: August 28, 2026Apply →

?Deep Tech Funding FAQs — San Diego

Are there deep tech VCs headquartered in San Diego?

Yes — 1 funds headquartered in San Diego have "Deep Tech" (or a close synonym) in their legal name, based on SEC Form D filings. This is a name match, not a verified thesis, so it understates true local investor interest.

What accelerators in San Diego support deep tech startups?

8 accelerator programs open to San Diego-based deep tech founders are in our database, including programs based in San Diego and globally-available programs.

Are there angel investor networks in San Diego?

Yes — 6 angel investor networks based in San Diego are in our database, ranked by member count with deep tech-relevant groups surfaced first where our sector data supports it.

What grants are available for deep tech founders?

60 currently open federal grant programs are tagged under the Technology category, which is where deep tech falls in our grant classification. These are federal programs open to eligible founders nationwide (including San Diego), pulled live from Grants.gov and refreshed nightly.

Your Deep Tech Funding Action Plan

1

Research & Prepare

  • Review the 1 deep tech-matched funds above and their filing history
  • Check each fund's website for current investment criteria before reaching out
  • Prepare a pitch deck and financial projections tailored to your stage
2

Apply & Connect

  • Apply to the 8 accelerator programs listed above
  • Reach out to the 6 angel networks in San Diego
  • Check eligibility for the 6 open grant programs above
3

Follow Up

  • Track deadlines for any application-based programs above
  • Look for warm introductions through your existing network before cold outreach
  • Revisit this page periodically — fund and grant data refreshes nightly